Gadget of the Week

Roomba 880 Vacuum

Meet your new household helper.

If you're into Animal House–caliber par-taying that leaves your floors strewn with popcorn, M&Ms, and beer cans, or if you're into shag carpets, or both, read no further. The Roomba 880 robotic vacuum cleaner cannot help you. But if you want some dependable help tidying up a reasonably sanitary home, the 880 could be just the thing.

An improved, more efficient machine than the earlier 790 model, the 880 does what it's designed...